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Deprecated — the company channel (/v1/company-channel). It drives the legacy orchestration runtime, which is FROZEN — it accepts no new capabilities. The durable runtime enforces policy at the tool boundary, not only at the gateway, and it is the only runtime new work is built on.Use instead: GET/POST /v1/teams/:team/tenants/:tenantUserId/sessions/:channel/messagesThese routes keep answering. Nothing is removed and no response shape changes: the deprecation is announced in headers only, which are purely additive. Every response from this router carries Deprecation (RFC 9745 — the value is a Structured Field Date, @ plus epoch seconds, not the boolean true some pre-RFC clients look for), Link rel="deprecation", Warning: 299 and X-Naive-Deprecation-Id: dep.surface.company-channel. There is no Sunset header, because this is frozen with no sunset date — a Sunset on a frozen row would be a date the platform has not promised.Announced 2026-07-29. Level frozen. The freeze ends when company_containers with provider='hermes' and status='running' reaches zero — not on a date.Replacement surface: team sessions — declared, and refused in this build; the table above says what to use meanwhile.
A single company-wide message channel.
This channel is company-scoped: it carries no team column and no tenant column. Every message posted here is visible to every reader of the company channel. If you are running work for multiple customers under one company, do not put customer-identifying content in it.That is also the reason /v1/teams/…/sessions refuses rather than re-serving these rows: answering a per-(team, tenant) question with company-wide data would mix two customers’ conversations into one list.

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@mention dispatch

A message containing @name posted from a human session dispatches the named agents — it starts work, not just a notification. A message posted with an API key does not. If you are mirroring an external chat into this channel, strip or escape @ to avoid dispatching agents on every inbound message.